View source for Data management plan (DMP)

== Data Management Plan (DMP) ==

A Data Management Plan (DMP) outlines how data will be collected, stored, processed, analyzed, and shared throughout an RCT. A well-structured DMP ensures data integrity, security, compliance, and reproducibility.

=== 1. Key Components of a Data Management Plan (DMP) ===

==== A. Study Overview ====
* '''Title''': Full name of the RCT.
* '''Principal Investigator (PI)''': Name, institution, contact details.
* '''Study Objectives''': Summary of the trial's aims and endpoints.
* '''Trial Design''': Parallel, crossover, stepped wedge, etc.
* '''Number of Sites''': Single-center or multi-center study.
* '''Funding Source''': Grant agency, industry funding, or institutional support.

==== B. Data Collection & Database Management ====

===== 1. Data Sources =====
* Electronic Data Capture (EDC): REDCap, OpenClinica, Castor EDC.
* Case Report Forms (CRFs): Paper or electronic forms for data entry.
* Patient-Reported Outcomes (PROs): Surveys, diaries, mobile applications.
* Wearable & Sensor Data: Fitbit, glucose monitors, ECG.
* Laboratory Data: Biochemical, imaging, genomic sequencing.

===== 2. Data Entry Process =====
{| class="wikitable"
! Step !! Description
|-
| Source Data || Data collected from participants (e.g., interviews, medical records).
|-
| Data Entry || Entered into EDC by research staff, validated in real-time.
|-
| Double Entry (if required) || Independent verification for accuracy.
|-
| Validation Checks || Automatic range checks, logic checks, missing data reports.
|-
| Audit Trails || Log of who entered/edited data, timestamps included.
|}

===== 3. Data Collection Timeline =====
* Baseline data: Collected at recruitment.
* Follow-up data: Scheduled at predefined intervals (e.g., 3 months, 6 months, 12 months).
* Final dataset lock: After data cleaning and verification.

==== C. Data Storage & Security ====

===== 1. Storage & Backup =====
* Primary Storage: Institutional servers, REDCap, cloud-based EDC.
* Backup Strategy:
** Daily automated backups for active databases.
** Offsite backup copies stored securely.
** Retention Policy: Data stored for 5–10 years post-study.

===== 2. Data Security & Confidentiality =====
{| class="wikitable"
! Measure !! Description
|-
| Access Control || Role-based access (PI, statisticians, site coordinators).
|-
| De-Identification || Use participant ID numbers instead of names.
|-
| Encryption || Data encrypted in transit and at rest.
|-
| Two-Factor Authentication (2FA) || Required for database access.
|-
| HIPAA/GDPR Compliance || Ensure adherence to local data protection laws.
|}

==== D. Randomization & Blinding ====
* '''Randomization Method''': Simple, blocked, stratified.
* '''Randomization Software''': Integrated in REDCap, Castor EDC, or using R/SAS/STATA.
* '''Blinding Strategy''': Single-blind, double-blind, or unblinded data managers.

==== E. Data Quality Assurance ====
{| class="wikitable"
! Quality Control Measure !! Description
|-
| Real-Time Data Validation || Automatic checks on range, logic, and missing values.
|-
| Data Monitoring Committee (DMC) || Independent committee reviews data periodically.
|-
| Source Data Verification (SDV) || Random checks comparing CRF entries to medical records.
|-
| Query Resolution || System flags discrepancies for review by site coordinators.
|-
| Interim Analysis || Assesses data trends without unblinding treatment groups.
|}

==== F. Data Analysis & Statistical Plan ====

===== 1. Primary & Secondary Outcomes =====
* Define how primary and secondary endpoints will be measured.
* Specify pre-specified subgroups (e.g., age, sex, disease severity).

===== 2. Analysis Plan =====
{| class="wikitable"
! Analysis Type !! Description
|-
| [[Intention-to-treat analysis]] (ITT) || Includes all randomized participants regardless of protocol adherence.
|-
| [[Per-protocol analysis]] || Includes only participants who fully adhered to the intervention.
|-
| [[Missing data]] Handling || Multiple imputation, last observation carried forward (LOCF).
|-
| Longitudinal Analysis || Repeated measures analysis for follow-ups.
|-
| Interim Analyses || Conducted at predefined time points with statistical stopping rules.
|}

===== 3. Statistical Software =====
* R, SAS, SPSS, Stata, Python for analysis.
* REDCap exports available in multiple formats.

==== G. Data Sharing & Dissemination ====

===== 1. Data Sharing Policy =====
* '''Access''': Approved investigators during the study; public access post-study (if applicable).
* '''Repositories''': Institutional repository, Dryad, Figshare.
* '''Timeline''': 6–12 months after publication.
* '''Data Use Agreement (DUA)''': Required for secondary use.

===== 2. Knowledge Translation =====
* Publications, conference presentations.
* Lay summaries for patient groups.
* Media outreach: Press releases, social media.

==== H. Ethical & Regulatory Compliance ====
* Ethics approval from IRB/REB.
* Registration on ClinicalTrials.gov or WHO ICTRP.
* Informed consent: Clear, plain-language process.
* Adverse event reporting per regulatory requirements.

==== I. Budget Considerations for Data Management ====
{| class="wikitable"
! Category !! Description !! Estimated Cost
|-
| EDC Software || REDCap (free) or commercial EDC || $0 - $50,000
|-
| Data Entry Personnel || Research assistants || $20,000 - $50,000
|-
| IT Support || Maintenance, troubleshooting || $10,000 - $30,000
|-
| Backup & Security || Cloud storage, encryption || $5,000 - $15,000
|-
| Statistical Analysis || Software licenses || $5,000 - $20,000
|}

=== Final Recommendations ===
* Use a secure EDC system (REDCap, OpenClinica).
* Standardize data collection forms with validation.
* Implement real-time data quality checks.
* Ensure compliance with GCP, GDPR, HIPAA.
* Plan for long-term data storage and sharing.